The painted on intake blocks on the Cobi Mig 29 (5840) did not cut it for me so i designed a new intake "block".

No need for any new blocks from other sets, just remove from the model as needed and move a few (3) blocks and it is in. I designed intake inserts that needs to be glued in place. The idea is that these inserts can slide open and close and it sort of works but it is not reliable, but that is for another day. It works as is

Prints in grey PLA 0.1 layer and full support for best quality

Intake inserts are printed with 1 layer raft to get the grid effect, do not remove the raft just cut the excess away with a side cutter or scissors.